Ventilatob



VENTILA'TOR 2 Sheets-Sheet l M'y 21, 1929. t w. HAvENs Filed Dec. 19,1927 May 21, 1929. w, HAVENS 11,713,870

VENTILATOR Filed neo. 19, 1927 `2 sheets-sheet '2 mms MW xi e PatentedMay 2l, 1929.

UNITED STATES WILLIAM HAVENS, OF TOPEKA, KANSAS.

VENTILATOR.

Application led December 19, 1927. Serial No. 240,959.

My invention relates to ventilators more especially intended for railwaypassenger cars and has for its object the provision of a constructionwhich will automatically adjust itself to the direction of car travel soas to permit the vitiated air to be exhausted from the car interior.

The invention also contemplates means for closing the ventilator whennecessary to exclude cold air and also to prevent ingress of snow orrain; while at the same time involving means for preventing ingress ofcinders.

The objects and advantages of my invention will all be readilycomprehended from the following detailed description of the drawings,wherein Figure 1 is a partial side elevation and partial sectional Viewof the ventilator.

Figure 2 is a partial end elevation and partial sectional view of myimproved ventilator. l

Figure 3 is a partial plan and partial sectional plan view of myimproved ventilator.

Figure 4 is a perspective view of one of the deilectors,

My improved ventilator, which is especially adapted for use on railwaypassenger cars, is intended to be placed on the roof of the car over asuitable opening therein. The ventilator, which has an open bottom, inthe particular exemplication, consists of a rectangular frame or housingof larger dimensions at bottom than at top and provided with end walls10, 10 and a top 11; the ends and sides being shown sloping outwardlytoward the bottom at 12 and terminating in the verticall disposed baseportions 13 which are a apted to iit onto the roof of the car about asuitable opening therein.

The sides of the ventilator intermediate of the base portions 13 and thetop 11, are cut away to provide large openings at 10a; and both sidesare providedjwith a plurality-of transversely disposed partitions 14arranged parallel with each other in spaced relation to provide thepassageways 15 therebetween. These partitions may bein the nature ofvertically disposed plates having laterally bent upper and bottom endsor flanges 16 to provide suitable means for securing the same in place.

The two sides of the ventilator are provided with cover members 17, withone longitudinal side of each cover or housing secured tothe ventilatortop 11 as shown at The sides of the ventilator, within thev covers ofhousings 17, and adjacent to the partitions 14, are provided with aplurality of vertically arranged deflectors 20 and of the generalconstruction more clearly shown in Figure 4; that is to say, thedeilectors are arranged to swing on the vertically disposed pivot pinsor trunnions 21. The upper end of each pivot pin or trunnion 21 isrotatably supported in place by a suitable bracket 22, while the lowerend of each pivotpin is supported by an angle plate 23. The lower endsof all the pivot pins are held in position on the respective angleplates` 23 by means of an apertured guide plate 24 extending lengthwiseof the. ventilator as shown in Figure 3. 1

The various deilectors 20 are preferably arranged equi-distances apartand, with the exception of the intermediate deflector 25, are each shownprovided with an inwardly disposed portion or wing 2 6 of such width,relative to the distance between the pivot points of the deflectors andthe partitions 14, that said wings will engage with either of theadjacent partitions 14 and thereby prevent a positioning of thedefiectors parallel with the sides of the ventilator. Thatis to say, thedeflectors 20are provided with the wings 26 so that the degree ofswinging movement ot' the deflectors will be limited by thev wings 26engaging with one of the adjacent partitions 14, as shown in Figure 3,where it is assumed that the direction of travel of the car on which theventilator is placed would be toward the bottom of the sheet containingsaid figure so that the outer air will be rushing lengthwise through thehousings 17 in the direction of the arrow.

As thev deflectors are all of substantially uniform width and spacing,the position of the intermediate delector 25, relative to the adjacentpartitions 14, is such that proper movement of the intermediate deector25 would. not be possible if it were provided with the wing 26 and forthat reason I show said deflector provided at bottom with a dependingstrip or stop member 2Gu adapted to engage the bottom oi the side of theventilator to prevent the too 'far inward swinging movement oi? thedeflector. In other words, the dei'lectors 20 and 25 are provided withthe stops 26 and 26, respectively,

l to prevent them from swinging into a laprection of travel.

Disposed lengthwise of the main housing of the ventilator at a pointintermediate the top and bottom thereof, namely at the longitudinallaxis of the ventilator, I provide a brace strap or plate 27, see Figure3; with ythe ends thereof shown bent downwardly and suitably secured tothe end walls 10 et the ventilator. This brace member or strap 27 isshown provided with a longitudinal slot 28 which is adaptedto receive abolt 29. The bolt 29 also passes through the apertured ends ofthe links30, 30 and the bolt is held in placein any suitable manner, as `forexample by nut 31 which may ,be held against rotation by a pin32 passingthrough the kbolt after the nut has been properly screwed into place.``The opposite ends of the links`30,`30 are each pivotally connected at33 to a bracket member 34 secured on the inner side of a door 35,; therebeing a door j ventilator'.

tion `in Figure o 35 foreach side of the Iventilator and each doorybeing of width and length sufficient to close the large openings in thesides et the These doors are each pivotally connected at one sidethereof, as shown at 36; the pivot pins heilig supported by suitablebrackets as at 37.

The doors 35, 35 are shown in open posin in full lines and may be swungto complete closing position by 1nov ing the bolt 29 toward the oppositeend of the slot` 28 so as to bring the links 30 and their pivot pointssubstantially on dead center as shown in dotted lines in Figure 3.

The sides of the ventilator adjacent to the openinfrs 10L therein areeach provided with a Vsuitzi-ble frameor strip 38 arranged in slightspaced relation with the main side wall of the ventilator for thepurpose of receiving a suitable screen 39 which is adapted to cover theentire opening in each side wall and prevent ingress of cinders and thelike. The `screens are intended to be removably held in place in anysuitable manner whic will permit them to be slid downwardly out of theframe by flexing the screen., so as to enable cleaning and renewal otthe screen wire when necessary.

lVitli my Ventilator it is apparent that the dellectors willautomatically adjust themselves to the direction of car travel or outerair currents and that with the outer air rushing through the open endedhousings 17, 17, an eduction of air from the car interior is inducedthroughpassages or channels 15. On the otherhand, in the event oi'severe rains, or the ingress of too much cold air, the ventilator maybeclosed from the car interior by simply moving the connected ends oflinks 30, 30 from one end of slot 28 to the other end thereof aspreviously described.

The construction shown is believed to be the best embodiment of theinvention, but structural modifications are possible without, however,departing from the spirit or my invention.

That I claim is:

1. A ventilator ot the character described comprising main housing, openat bottom to the car interior, the two opposite sides of the housingdisposed parallel with the' direction of travel of the car being eachprovided with an enlarged opening' therein, a plurality ot narrow airpassages arranged transversely of the sides et the housing andcommunicating with `said openings, open ended air channelsv arranged inthe exterior sides of the housing transversely ot said narrow airpassages, a plurality of oscillating deilectors arranged in saidchannels' adjacent to said air passages, means for limiting `the degreeof oscillation of the deiiectors, closure members forthe openings in thesides of the housing pivotally mounted on the housing interior, andmeans common te both closure members for simultaneously controllingsame.

2. A ventilator ofthe character described comprising a mainhousing openat bottom to the car interior, two opposite sides being provided with aplurality of narrow air passages for eiiecting communication between thehousing interior and exterior, open ended air channels in said sides andarranged transverscly of said air passages and in communicationtherewith,delectors arranged in the channels and rpivotally mountedadjacent to the outer ends of said air passages so to swing laterally,closure means on the housing interior for said air passages, and meanscommon to the closure means for simultaneously controlling same.

3. A ventilator of the character described comprising a housing open atbottom to the car interior, the two sides of the housing which aredisposed parallel with the direction of travel of the car being providedwith a plurality of horizontally spaced narrow air passages extendingtransversely for effecting communication between the housing interiorand exterior, open ended air channels arranged transversely of the outerends of said passages, deflectors oscillatingly mounted in said channelsadjacent to the outer ends of said passages, screen holding means on thehousing interior adjacent to said air passages, closure means pivotallymounted within the housing, and means common to all of the closure meansfor simultaneously controlling same.

4. A ventilator of the character described adapted to be arranged overan opening comprising a main housing having top and side walls and openat the bottom, two opposite longitudinal sides of the housing beingformed with enlarged openings therethrough, a plurality of horizontallyspaced partitions arranged transversely in both sides of the housingadjacent to said openings to provide a plurality of air passages, acover member secured to each of said longitudinal sides of the housingand extending beyond said sides to provide open ended air channels atthe outer ends of said partitions disposed transversely of' saidpartitions, a plurality of deflectors pivotally mounted at the outersides of the housing and within said cover members adjacent to the outerends of said partitions, and means for limiting the lateral swingingmovement of each of said defiectors.

5. A ventilator of the character described adapt-ed to be arranged overan opening and comprising a main housing having top and side walls andopen at bottom, two longitudinal sides of the housing having enlargedopenings therethrough, a plurality of horizontally spaced partitionsarranged transversely of each of said openings to provide a plurality ofair passages, a cover member secured to each of said longitudinal sidesof the housing on the exterior thereof to provide open ended airchannels disposed transversely of said partitions, a plurality ofindependently movable deflectors pivotally mounted at the outer sides ofthe housing within said cover members, means for limiting the lateralswinging movement of each of said defiectors, a closure member foreachof the openings in the two longitudinal side walls of the housing,each of said members being pivoted at one end to swing laterally, abrace member disposed substantially at the longitudinal center line ofthe housing interior and provided with a slot extending lengthwisethereof, and a link on each side of said member having one end pivotallyconnected to a closure member while the other end of each link hasslidable relation with said slot` and the extent of inward movement ofthe closure member controlled.

6. A ventilator comprising a rectangular housing open at bottom, twoopposite side Walls being provided with enlarged openings, a pluralityof horizontally spaced and transversely disposed partitions arranged inthe outer sides of the housing adjacent to said openings to provide aplurality of narrow air passages communicating with the openings in theside walls, cover members on the housing exterior extending lengthwiseof the sides having side openings, adapted to provide open ended airchannels disposed parallel with the outer sides of the housing, aplurality of deilectors pivotally mounted in each channel adjacent tothe outer ends of said partitions, means adjacent to the pivoted ends ofthe deflectors whereby the degree of oscillation of said deflectors iscontrolled, a screen holding frame in the housing adjacent to theenlarged opening in each of said side walls, closure means pivotallymounted at one end on the housing interior for closing said enlargedopenings, and means for simultaneously operating said closure means fromthe interior of the houslng.

WILLIAM HAVENS.

